Nasr, Dr.Mona M., and Shimaa Ouf. “A Proposed Smart E-Learning System Using Cloud Computing Services: PaaS, IaaS and Web 3.0”. International Journal of Emerging Technologies in Learning (iJET) 7, no. 3 (September 10, 2012): pp. 19–24. Accessed April 28, 2024. https://online-journals.org/index.php/i-jet/article/view/2066.